standardize between run and source some more

Dependencies

• [2] SBR7ARVH simplify saving settings
• [3] JMUD7T3O get rid of ugly side-effects in tests
• [4] ZJOSQFN6 bugfix: path munging on Windows
• [5] EJOZAD7N typo
• [6] OMLASW7K experiment at avoiding some merge conflicts
• [7] SW7BSBMJ several bugfixes in saving/loading cursor position
• [8] NFI42KGX more correct absolute path detection
• [9] EMG7SDLW bugfix: cold start
• [10] KKMFQDR4 editing source code from within the app
• [11] CQYKYJJU remember window positions across restart/ctrl+e

Change contents

• edit in source.lua at line 182
  [3.383]→[3.170971:171113](∅→∅),[3.170971]→[3.170971:171113](∅→∅),[3.171113]→[3.384:477](∅→∅)
  − print('initializing source position')

  − if Settings == nil then Settings = {} end

  − if Settings.source == nil then Settings.source = {} end

  − Settings.source.x, Settings.source.y, Settings.source.displayindex = App.screen.position()
• edit in source.lua at line 272
  [3.173727]

  [2.13]
  + if Settings == nil then Settings = {} end

  + if Settings.source == nil then Settings.source = {} end
• replacement in run.lua at line 153
  [3.182517]→[3.15:59](∅→∅),[3.485]→[3.182750:182756](∅→∅),[3.793]→[3.182750:182756](∅→∅),[3.182750]→[3.182750:182756](∅→∅)
  − if Settings == nil then

  − Settings = {}

  − end
  [3.182517]

  [2.111]
  + if Settings == nil then Settings = {} end